Window lift



June 17, 1924. 11,497,842

E. N. DOLLIN WINDOW LIFT Filed Oct. 20. 1920 3 Sheets-Sheet 1 June 17, 1924. I 1,497,842

E. N. DOLLIN WINDOW LIFT June 17 1924. 1,497,842

E. N. DOLLIN WINDOW LIFT Filed Oct. 20. 1920 3 Sheets-Sheet 5 L/ firm/ 2mm Patented June 17, 1924.

UNITED STATES EDGAR 1v. DOLLIN, or SYRACUSE, NEW YORK.

, WINDOW LIFT.

Application filed October 20, 1920. Serial N; 418,216.

To all whom it may concern:

Be it known that I, EDGAR N. DOLLIN, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Window Lifts, of which the following, taken in connection with the accompanying drawings, is a. full, clear, and exact description.

This invention relates to a: device commonly known as a window lift for opening and closing the movable windows of vehicle bodies, although it is evident that it may be used in other relations wherever applicable in converting rotary motion into re ciprocal motion.

The main ob 'ect is to provide simple and eflicient means for easily and quickly adjusting the window to either extreme or to any intermediate position, and automatically locking the same in any position of adjustment without the aid of extra locking means. i I v One of the specific objects is to utilize a relatively low pitch and short throw, rotary cam or eccentric preferably of the spiral type in the operation of a relatively long throw system of levers in the form of lazy tongs to which the window is at tached so that a relatively short movement of the lovers engaged by the spiral bearing will cause a considerably greater movement of the opposite end levers carrying the window in a plane at substantially right angles to the axis of movement of the cam or eccentric. n v

Another object is to simplify the method of assembling the window operating parts in and upon the door or panel of the vehicle body so that the entire window, including the operating parts, may be easily and quickly removed for repairs or IG-flChUStment when necessary.

A further object is to provide means in the form of coil springs connected to the upper ends of the lazy tong levers for partially counterbalancing the weight or the window whereby the latter may be more easily raised and lowered without overstraining any of the operating parts.

Other objects and uses relating to the specific device will be brought out in th following description.

In the drawings Figure 1 is an inner face view of a window for motor vehiclebodiesand improved relative to the outer cap section.

operating means therefor, portionsofthe; window frame of the body being shown at opposite side of the window, which is also. shown by dotted lines in its partly elevated position. i i v Figure 2 is an enlarged horizontal -sec-. tional View of the same device taken on line i 2-2, Figure 1.

Figure 3 is an enlarged inner face view'of the rotary disk and spiral bearings thereon.

Figures 4, and 6 are enlargedsectional views taken respectively in the "planes of lines i-4 and 55,Figure*2 and 6 6, Figure 1. 1 Figures 7 and 8 are perspective views of the detached interlocking plates for receiving the operating shaft of the spiral disk. Y

Figure 9 is aperspective View of the'de tached spring lock for holding the disk shown in Figure 8 against turning movement Figure 10 is a perspective view of the outer cap section for receiving the same shaft.

Figure 11 is a perspective shaq Figure 12 is a perspective view of the de tached hand lever.- t

Figure 13 is a detailedsectional view of a portion of the spirally ribbed disk'toe gether with the adjacent portion of the body panel and one of the locking disks shown inFigure 7. V I

Figure 14 is a top plan, partlyin section, of the outer cap together with the shaft therein and the hand lever on the shaft.

Thew'indow, A to be operated, is movable vertically in a guide opening or view of the pocket -Z). in the door or panel B- of the vehicle'body, and has its lower edge seated in a grooved supporting rail having a central pendant extension -'afor attachment to the operating means hereinafter described. i

The inner wall of the opening *6 of the door or panel B' in which the window is mounted is provided with a circular recess b for receiving the--cir-' cular body portion of a metal casing or housing 1 which is provided with a marginal flange -2 and coverplate 3, both secured by screws or bolts e to said wall around the recess b, said cas ing being provided with a reduced central hub seated in a correspondingly reduced portion of the recess bto form a bearing for one of the rotating parts of the window lifting means.

Portions of the marginal flange at dia metrically opposite sides of the case are cut away to form radial openings therethrough and the corresponding sides of the cover plate are provided with laterally projecting pairs of arms which extend through the openings in the flange and are also fastened to the inner wall of the frame -B, those of each pair being spaced one above theother and having their adjacent edges offset to one side to form parallel guides for certainparts of the window lifting mechanism presently described.

Window lifting mechanism.

ISA. disk 6 of metal is rotatably mounted within the casing 1- and is provided with a central hub 7-, at one side journaled in the bearing 1, the opposite or outerside being provided with a spiral groove -8 forming a spiral rib '9-, both of which extend several turns eccentrically around the axis of the disk as shown more clearly in Figure 3 for receiving and engaging a pair of studs or rollers 10 which are mounted upon the adjacent ends of a pair of opposite radially extended links -11, Figure 2, for imparting reciprocatoryinotion to the links as the disk is rotated in reverse directions.

That is the studs or rolls 10 are engaged in the groove 8 at opposite sides of the axis of the disk and when the window is in its extreme down position are engaged in the portions of the groove nearest said axis whereby when the disk is rotated in the proper direction or to the right, Figure 3,

as indicated by arrow X, the studs or rolls .10 and links 11 will be gradually moved away from said axis, while the ro tation of the disk in a reverse direction will, of course, return those parts toward the axis.

-The links ll extending horizontally across the open sides of the groove -8- Withinthe housing 1 and thence out- ,movable levers 14:, constituting lazy tongs, have their lowermost levers pivoted to each other and to the extension -aof the support a for the window A while the upper ends of the upper levers are connected respectively to the links 11 preferably coaxial with the outermost rolls 13 whereby the reciprocatory movement of the links, by the rotation of the disk 6,, will be transmitted to the upper ends of the upper levers of the lazy tongs to open and close the same and thereby to cause the raising and lowering of the window.

The weight of the Window is partly counterbalai'iced by a pair of coil springs 15, having their outer ends attached to suitable anchored eyes -16-- in the frame 1 and their inner ends attached to the adjacent ends of the links 11, as shown more clearly in Figure 1, thereby permitting the window to be raised with great er ease and less power then would be the case, if the springs were omitted. The inner ends of the levers 11 are also provided with outturned lugs l7 which ride along and upon suitable guides 18 in the coverplate --3- to additionally hold the links against vertical displacement. Suitable roller ball bearings 19 may be interposed between the inner face of the disk 6- adjacent wall of the casing -l to reduce friction when the disk is rotated, the opposite face being provided with a circular boss -20- bearing against the inner face of the coverplate to hold the disk against outward displacement.

Hand lever attachment.

The hub 7 of the disk --6- is provided with a socket 21- of angular cross section for receiving the inner end of the rotary shaft -22- of similar angular cross section, said shaft being extended inwardly from the inner end of the hub beyond the in ner face of the door or panel B- and is provided at its outer end with a hand lever or crank arm 23 rigid thereon and by which the shaft may be rotated in reverse girlgctions to impart similar motion to the The shaft 22 is held in position by suitable plates 2 l and 25 and a cap -26, all of which parts are assembled coaxially with and upon the shaft -22- in such manner that the shaft with the lever 23, cap -26 and plate -25 may be easily and quickly removed or replaced when necessary without disturbing any of the other parts of the window lifting mechanism. a

For this purpose the plate 24l is secured by screws 27 to the inner face of the door or panel -B and is provided with a series of, in this instance, three, inwardly projecting headed studs 28 arranged in uniformly spaced relation circumferentially about the axis of the shaft -22 and adapted to interlock witha corresponding number of key-hole slots 29 in the plate 25, both of said plates consisting of circular metal disks of substantially the same diameter and provided with central shaft openings and 3l respectively.

The shaft opening 30 in the disk 24 is circular, and of substantially the same diameter as that of the portion of the shaft 22, which passes through to form a bearing therefor. The shaft opening 31 in the disk 25- is provided with a relatively larger portion 32, the portion 32- being of suflicient size to permit the passage of the shaft -22 therethrough, while the portion 33 is of substantially the same radius as that of a reduced portion -22- of the shaft said reduced portion forming an annular groove in which the walls of the smaller portion -33 of the shaft opening 31 enter when the parts are assembled to hold the shaft against inward endwise movement.

The plates 2l and 25 are seated in a socket -34- in the cap 26, the plate 25- being secured to the inner wall of said socket by screws when engaged with the groove formed by the reduced portion 22 of the shaft.

lVhen the plates 24- and 25 are interlocked with each other by the insertion of the studs -28 through the keyhole slots 29, the heads of said studs projecting slightly beyond the inner face of the plate 25 and are adapted to enter recesses 36 in the adjacent or the inner wall of the socket 3 l. Each recess -36- is, however, circumferentially elongated for receiving bow springs -37, which are placed under tension by engagement of the heads of the studs 28 therewith and are provided with sockets 3S into which the heads of the studs are adapted to ride as the disks 2-l and 25- are turned relatively to each other in the act of interlocking the studs in the key-hole slots 29*, thereby frictionally holding the cap 26 and plate Q5-, secured thereto, against turning movement relatively to the plate -2 l-, as the shaft 22 is rotated by its hand lever 23.

On the other hand, if it is desired to remove the shaft 22 with the handle 23, disk 26 and plate 25 thereon, the cap -26- with the plate -25 therein may be turned by hand in the proper direction for causing the larger ends of the key-hole slots to register with the heads of the studs 28, whereupon the shaft with the handle 2-, cap .-26 and plate -25 may be withdrawn inwardly endwise away from the plate 24e and panel B, it being understood that the larger ends of the key-hole slots 29 are slightly larger than the heads of the studs 28, while the remaining portions of the slots are of slightly less width than the diameter of said heads.

In assembling the parts of the shaft attachment, the plate 24is permanently secured to the inner face of the door or panel B- with its central opening 30- coaxial with the disk 6. The cap -26- and plate 25 are preferably placed over and upon the shaft -22 before the'handle -23 is secured to the inner end of said shaft, the disk 25 being placed over the larger portions of the shaft in eccentric relation thereto until it is registered with the reduced portion '-22 whereupon it may be moved to concentric relation to the shaft and then fastened by the screws to the inner wall of the cap -26, which is seated closely upon the shaft and, therefore, holds the disk 25 against radial movement, assisted b the engagement of the peripheiy of said disk with the peripheral walls of the socket -3l: after the disk 25 and cap 26-- have been properly assembled upon the shaft 22. The hand lever -28 is placed upon and securedto the inner end of said shaft by a'ny'suitable means which will firmly lock the two parts together against relative rotation.

Now, with the plate 2 lin operating position upon the inner face of door orpanel -B- and the parts 22, 23, -'-25 and -26 assembled in the manner described, the opposite end of the shaft inserted through the opening 30 in the disk 24 and engaged with the angular socket 21- in thehub 7- of the disk 6, whereupon the cap with the disk 25 secured therein, isturned until the larger ends of the slots 29 are registered with the heads of the studs 28,thus permitting the cap with the shaft therein to be moved toward the disk 6 until the heads of the studs 23- pass entirely through the slots29 after which the cap is again turned in the proper direction to cause-the smaller portions of the slots 29- to embrace the smaller portions of the studs 28., while the heads of said studs will ride in the recesses -36* and against the springs 37 until engaged in the sockets 38- which hold the cap against accidental turning movement, it being understood that the ends of this spring 37 are engaged with the ends of the recess -36 to hold said springs against circumferential movement.

Operations.

When the parts are assembled in the manner described, and are in their normal positions, with the window down, the rotation of the disk 6 in the direction indicated by the arrow X, Figure 3, will cause the links 11- to be shifted radially in opposite directions away from the axis of said disk, thereby causing a similar spreading of the upper ends of the upper levers of the lazy tongs 14, which, in turn, will cause a much greater elevation of the lowermost levers and window support connected thereto to elevate the window toward the position shown by dotted lines, Figure 1, the engagement of the studs or rollers -10- with the walls of the groove 8 at diametrically opposite sides of the axis, with the disk serving to lock said links and lazy tongs in their adjusted positions to hold the window in any position of adjustment without extra locking means. A reverse rotation of the disk will, of course, cause the return of the window to its lowermost position. The use of the spiral groove and rib as the means for converting rotary into reciprocatory motion requires but little power, is substantially noiseless and serves to hold the parts operated thereby in any position of adjustment. Other forms of eccentrics or cams may be employed with equal efiiciency and various other changes may be made in the detailed construction of the various parts of the window lifting mechanism without departing from the spirit of my invention and therefore, I do not wish to limit myself to the precise construction and arrangement shown and described.

By locking the plate 25-- of the cap -26- to the baseplate 24 in the manner described or by slight turning movement not only avoided the use of external screws but enables the cap to be brought into close contact with the inner face of the panel and causes it to present a smooth and unbroken appearance and, at the same time, permits the hand lever and shaft together with the cap section 26 and its disk 25 to be easily and quickly withdrawn at any time by simplyturning the cap by hand in the proper direction for releasing it from the baseplate 24.

What I claim is:

1. In combination with a vertically mov able window, a device for raising and lowering said window, including a pair of horizontally alined guides extending in oppo site directions from a point substantially midway between the opposite edges of the window, slides movable in said guides and spring pressed in one direction, and means for moving the slides along the guides against the spring action, and means actuated by the movement of the slides in one direction for imparting a lifting movement to the window.

2. In combination with a vertically movable window, a pair of horizontally alined guides extending in opposite directions from a point between the opposite upright edges of the Window, slides movable in the guides and spring pressed in one direction, means operable at will for moving the slides along the guides, and a lazy tongs operatively connected to said slides and to the window for raising the window as the slides are moved away from each other and for lowering the window as the slides are moved toward each other.

3. In combination with a vertically movable window, a pair of horizontally alined guides extending in opposite directions from r a point substantially midway between the opposite upright edges of the window, slides movable in said guides, springs for moving the slides along the guides away from each other, a disk rotatable about a horizontal axis in substantially the same horizontal plane as that of the guides and provided with a spiral bearing around said axis and engaging the slides, and a lazy tongs operatively connected to said slides and to the window for raising the window as the slides are moved away from each other and for lowering the window as the slides are moved toward each other.

In witness whereof I have hereunto set my hand this 8th day of October 1920.

EDGAR N. DOLLIN.

Witnesses:

H. E. CHASE, E. M. FRADENBU'RGH. 

